HZ has a team of developers who stand behind their work and don't hide their identity. They have collateral on the line (their reputations). They have great branding and a fine marketing team as well. It has an Asset Exchange and will soon have a reputation system to accompany it.
The devs have plans of building a smart-contract system and anonymity features. It has an official partnership with Blocknet (the internet of blockchains, merging multiple "coins" and their associated tech) and Bitnation (governance 2.0) Both of these have huge potential for real world use/adoption and advancing the crypto-sphere and eventually bring about society 2.0
HZ has better qualities than NXT (anon devs, no new releases/partnerships, bad distribution, etc...) and has a much lower price and marketcap.